ArticleParasites & vectors2018
Molecular characterization of Cryptosporidium spp. and Giardia duodenalis in children in Egypt.
Article in Parasites & vectors, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.
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35 citing papers in PubMed, 2 syntheses or guidelines pooled it, 68 citations in OpenAlex.
- Molecular Epidemiology of Giardia Species in Different Hosts in Africa: A Systematic Review and Meta-Analysis.Acta parasitologica · 2026Pooled it
- Prevalence and risk factors of intestinal parasitic infections among preschool and school-aged children in Egypt: a systematic review and meta-analysis.BMC public health · 2025Pooled it
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- Prevalence and molecular characterization ofVeterinary world · 2023Article
- Global molecular prevalence ofHeliyon · 2023Review
- Multilocus genotyping of Giardia duodenalis in pre-weaned calves with diarrhea in the Republic of Korea.PloS one · 2023Article
- Potential Zoonotic Transmission ofTransboundary and emerging diseases · 2023Article
- Prevalence and genetic characterization of Enterocytozoon bieneusi in children in Northeast Egypt.Parasitology research · 2022Article
- Molecular prevalence ofJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2021Article
- Detection ofJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2021Article
- Genetic Characterization ofPathogens (Basel, Switzerland) · 2021Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe transmission of Cryptosporidium spp. and Giardia duodenalis into humans varies according to species/genotypes of the pathogens. Although infections with both parasites are recorded in Egypt, few data are available on the distribution of Cryptosporidium species and G. duodenalis genotypes. The present study assessed the occurrence and genetic diversity of Cryptosporidium spp. and G. duodenalis in Egyptian children.
methodsIn the present study, 585 fecal specimens were collected from children eight years old and younger in three provinces (El-Dakahlia, El-Gharbia and Damietta) during March 2015 to April 2016. PCR-RFLP analysis of the small subunit rRNA gene and sequence analysis of the 60 kDa glycoprotein gene were used to detect and subtype Cryptosporidium spp., respectively, whereas PCR and sequence analyses of the triose phosphate isomerase, glutamate dehydrogenase and β-giardin genes were used to detect and genotype Giardia duodenalis.
resultsThe overall infection rates of Cryptosporidium spp. and G. duodenalis were 1.4% and 11.3%, respectively. The Cryptosporidium species identified included C. hominis and C. parvum, each with three subtype families. The C. hominis subtypes were IbA6G3 (n = 2), IdA17 (n = 1), IdA24 (n = 1) and IfA14G1R5 (n = 1), while C. parvum subtypes were IIdA20G1 (n = 1), IIaA15G2R1 (n = 1), and IIcA5G3a (n = 1). The G. duodenalis identified included both assemblages A (n = 31) and B (n = 34). All G. duodenalis assemblage A belonged to the anthroponotic sub-assemblage AII, while a high genetic heterogeneity was seen within assemblage B.
conclusionsData from this study are useful in our understanding of the genetic diversity of Cryptosporidium spp. and G. duodenalis in Egypt and the potential importance of anthroponotic transmission in the epidemiology of both pathogens.
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